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Understanding Cancer Series-Part10 (Why Cancer is Potentially Dangerous)

Discussion in 'Oncology' started by waleed, Sep 21, 2011.

  1. waleed

    waleed Moderator

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    N.B :As said before Cancer grows out of normal cells in the body. Normal cells multiply when the body needs them, and die when the body doesn't need them. Cancer appears to occur when the growth of cells in the body is out of control and cells divide too quickly. It can also occur when cells forget how to die. A malignant tumor, a "cancer," is a more serious health problem than a benign tumor because cancer cells can spread to distant parts of the body. For example, a melanoma (a cancer of pigmented cells) arising in the skin can have cells that enter the bloodstream and spread to distant organs such as the liver or brain. Cancer cells in the liver would be called metastatic melanoma, not liver cancer.
    Metastases share the name of the original ("primary") tumor. Melanoma cells growing in the brain or liver can disrupt the functions of these vital organs and so are potentially life threatening.

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    source 1:University of Maryland Medical Center | Home
    source 2:Comprehensive Cancer Information - National Cancer Institute
     

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